T(n,k)=Number of 2nX2k 0..2 arrays with values 0..2 introduced in row major order and each element equal to exactly one horizontal or vertical neighbor.
A198532
T(n,k)=Number of 2nX2k 0..2 arrays with values 0..2 introduced in row major order and each element equal to exactly one horizontal or vertical neighbor.
Terms
- a(0) =2a(1) =12a(2) =12a(3) =76a(4) =206a(5) =76a(6) =492a(7) =3838a(8) =3838a(9) =492a(10) =3212a(11) =74582a(12) =213328a(13) =74582a(14) =3212a(15) =21036a(16) =1481214a(17) =12510524a(18) =12510524a(19) =1481214a(20) =21036a(21) =137932a(22) =29737425a(23) =757941274a(24) =2223874372a(25) =757941274a(26) =29737425a(27) =137932a(28) =904812a(29) =600187403
External references
- oeis: A198532